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4253561 = 13225169
BaseRepresentation
bin10000001110011101111001
322000002210022
4100032131321
52042103221
6231100225
751104024
oct20163571
98002708
104253561
112445844
121511675
13b5c100
147ca1bb
155904ab
hex40e779

4253561 has 6 divisors (see below), whose sum is σ = 4606110. Its totient is φ = 3926208.

The previous prime is 4253537. The next prime is 4253563. The reversal of 4253561 is 1653524.

It can be written as a sum of positive squares in 3 ways, for example, as 75625 + 4177936 = 275^2 + 2044^2 .

It is a de Polignac number, because none of the positive numbers 2k-4253561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4253561.

It is not an unprimeable number, because it can be changed into a prime (4253563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12416 + ... + 12753.

It is an arithmetic number, because the mean of its divisors is an integer number (767685).

Almost surely, 24253561 is an apocalyptic number.

It is an amenable number.

4253561 is a deficient number, since it is larger than the sum of its proper divisors (352549).

4253561 is a wasteful number, since it uses less digits than its factorization.

4253561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25195 (or 25182 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 4253561 is about 2062.4163013320. The cubic root of 4253561 is about 162.0258176604.

The spelling of 4253561 in words is "four million, two hundred fifty-three thousand, five hundred sixty-one".

Divisors: 1 13 169 25169 327197 4253561